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Fine-scale genetic structure and gene dispersal inferences in 10 Neotropical tree species

hal.structure.identifierService d'Eco-Ethologie Evolutive
dc.contributor.authorHARDY, Olivier J.
hal.structure.identifierEcologie des forêts de Guyane [ECOFOG]
dc.contributor.authorMAGGIA, Laurent
hal.structure.identifierEcologie des forêts de Guyane [ECOFOG]
dc.contributor.authorBANDOU, Eric
dc.contributor.authorBREYNE, Peter
hal.structure.identifierBiodiversité, Gènes et Ecosystèmes [BioGeCo]
dc.contributor.authorCARON, Henri
hal.structure.identifierCentre d’Ecologie Fonctionnelle et Evolutive [CEFE]
dc.contributor.authorCHEVALLIER, Marie-Hélène
hal.structure.identifierDiversité et génomes des plantes cultivées [UMR DGPC]
dc.contributor.authorDOLIGEZ, Agnes
hal.structure.identifierBiodiversité, Gènes et Ecosystèmes [BioGeCo]
dc.contributor.authorDUTECH, Christian Cyril
hal.structure.identifierBiodiversité, Gènes et Ecosystèmes [BioGeCo]
dc.contributor.authorKREMER, Antoine
hal.structure.identifierBiodiversité, Gènes et Ecosystèmes [BioGeCo]
dc.contributor.authorLATOUCHE-HALLÉ, Céline
hal.structure.identifierEcologie des forêts de Guyane [ECOFOG]
dc.contributor.authorTROISPOUX, Valérie
hal.structure.identifierEcologie des forêts de Guyane [ECOFOG]
dc.contributor.authorVERON, Vincent
hal.structure.identifierInstitute of Forest Genetics and Forest Tree Breedings
dc.contributor.authorDEGEN, Bernd
dc.date.issued2006
dc.identifier.issn0962-1083
dc.description.abstractEnThe extent of gene dispersal is a fundamental factor of the population and evolutionary dynamics of tropical tree species, but directly monitoring seed and pollen movement is a difficult task. However, indirect estimates of historical gene dispersal can be obtained from the fine-scale spatial genetic structure of populations at drift-dispersal equilibrium. Using an approach that is based on the slope of the regression of pairwise kinship coefficients on spatial distance and estimates of the effective population density, we compare indirect gene dispersal estimates of sympatric populations of 10 tropical tree species. We re-analysed 26 data sets consisting of mapped allozyme, SSR (simple sequence repeat), RAPD (random amplified polymorphic DNA) or AFLP (amplified fragment length polymorphism) genotypes from two rainforest sites in French Guiana. Gene dispersal estimates were obtained for at least one marker in each species, although the estimation procedure failed under insufficient marker polymorphism, limited sample size, or inappropriate sampling area. Estimates generally suffered low precision and were affected by assumptions regarding the effective population density. Averaging estimates over data sets, the extent of gene dispersal ranged from 150 m to 1200 m according to species. Smaller gene dispersal estimates were obtained in species with heavy diaspores, which are presumably not well dispersed, and in populations with high local adult density. We suggest that limited seed dispersal could indirectly limit effective pollen dispersal by creating higher local tree densities, thereby increasing the positive correlation between pollen and seed dispersal distances. We discuss the potential and limitations of our indirect estimation procedure and suggest guidelines for future studies
dc.language.isoen
dc.publisherWiley
dc.subjectSEED DISPERSAL
dc.subjectSPATIAL GENETIC STRUCTURE
dc.subjectTROPICAL TREES
dc.subjectDISSEMINATION DES GRAINES
dc.subjectGENETIQUE DES POPULATIONS
dc.subjectGENE DISPERSAL
dc.typeArticle de revue
dc.identifier.doi10.1111/j.1365-294X.2005.02785.x
dc.subject.halSciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire
bordeaux.journalMolecular Ecology
bordeaux.page559-571
bordeaux.volume15
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-01031603
hal.version1
hal.popularnon
hal.audienceNon spécifiée
dc.title.itFine-scale genetic structure and gene dispersal inferences in 10 Neotropical tree species
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01031603v1
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